Which of the following is not a transverse wave?
A
Light waves
B
Radio waves
C
Sound waves
D
All the above
Correct Answer: Sound waves
Light and Radio waves are both different frequency/wavelengths of electromagnetic radiation, which consists of two components electric and magnetic of perpendicular, transverse waves. Sound, on the other hand, is a longitudinal wave which oscillates parallel to it's medium (back and forth instead of up and down).